diff --git a/payphone/bot.py b/payphone/bot.py
index fad71f0..f5da2fd 100644
--- a/payphone/bot.py
+++ b/payphone/bot.py
@@ -7,7 +7,7 @@ from discord import abc
 from discord.ext import commands
 from discord.ext.commands import errors
 
-from tortoise import expressions, transactions
+from tortoise import expressions, transactions, exceptions as tortoise_exc
 
 import redis.asyncio as aredis
 
@@ -366,6 +366,11 @@ class Payphone(commands.AutoShardedBot):
 
         elif isinstance(exception, errors.CommandNotFound):
             return
+        
+        elif isinstance(exception, tortoise_exc.TransactionManagementError):
+            # Tortoise ORM bug. This may need to be logged for debugging, but for now they just
+            # clutter the logs.
+            return
 
         else:
             return await super().on_command_error(context, exception)
diff --git a/payphone/cogs/calls/cog.py b/payphone/cogs/calls/cog.py
index 0fc92db..283381f 100644
--- a/payphone/cogs/calls/cog.py
+++ b/payphone/cogs/calls/cog.py
@@ -678,6 +678,10 @@ class Calls(base.Cog):
             lambda c: c.id != channel_id, call.channels
         )
 
+        if other_channel is None:
+            # BUG: The call wasn't properly set up.
+            return
+
         user, profile = await utils.get_user(message.author)
 
         call_rss = await models.CallUserChannelRelationship.filter(
diff --git a/payphone/cogs/users/cog.py b/payphone/cogs/users/cog.py
index ff07d8d..e4d1855 100644
--- a/payphone/cogs/users/cog.py
+++ b/payphone/cogs/users/cog.py
@@ -390,37 +390,28 @@ class Users(base.Cog):
 
         top_users = (
             await models.User.filter(leaderboard_position__lte=10)
+            .prefetch_related("profiles")
             .order_by("leaderboard_position")
             .limit(10)
         )
 
-        rows = [
-            [
-                f"#{pos + 1}",
-                fmt.trim(user.username, 13),
-                f"{user.leaderboard_calls_count if user.leaderboard_calls_count is not None else "?"} call{"s" if user.leaderboard_calls_count != 1 else ""}",
-            ]
+        user_rows = [
+            f"**#{pos + 1} - {user.profiles[0].name}**{" (You!)" if user.id == ctx.author.id else ""}\nParticipated in {user.leaderboard_calls_count} calls."
             for pos, user in enumerate(top_users)
         ]
 
-        if not any(map(lambda u: u.id == ctx.author.id, top_users)):
-            user, _ = await utils.get_user(ctx.author)
-
-            if user.leaderboard_position is not None:
-                rows.append(
-                    [
-                        f"#{user.leaderboard_position}",
-                        fmt.trim(user.username, 13),
-                        f"{user.leaderboard_calls_count if user.leaderboard_calls_count is not None else "?"} call{"s" if user.leaderboard_calls_count != 1 else ""}",
-                    ]
-                )
-
-        table = fmt.monospace_table(rows)
-
         embed = discord.Embed(
             color=constants.EMBED_COLOR,
             title=f"Monthly Leaderboard ({datetime.now(timezone.utc).strftime("%B")})",
-            description=f"```\n{table if len(rows) > 0 else "Come back in 15 minutes!"}\n```",
+            description=(
+                "Payphone's monthly leaderboard is based on the amount of calls you've "
+                "participated in with more than 25 messages sent (to prevent spam). The stats are "
+                "resetted every month.\n"
+                "\n"
+                "__**Top Users:**__\n"
+                "\n"
+            )
+            + "\n\n".join(user_rows),
             author=self.bot.embed_author,
             footer=discord.EmbedFooter(
                 text="The leaderboard is updated every 15 minutes."